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Microsoft drops an actively exploited zero-day among record high of 1,413 vulnerabilities

14 October 2026 at 13:42

Microsoft’s streak of record-breaking vulnerability disclosures continued with a mega Patch Tuesday, containing 1,413 defects affecting the company’s various enterprise products and services. 

The monthly batch of patches surpassed the company’s previous annual record of 1,261 common vulnerabilities and exposures (CVEs) set in 2020. 

“Hundreds of CVEs in a single release used to be the exception — now it’s the baseline,” Dustin Childs, head of threat awareness at TrendAI’s Zero Day Initiative, wrote in an email. AI is partly to blame, he added, but it “isn’t creating these bugs out of thin air; it’s just shortening the time between a vulnerability existing and someone noticing it.”

Yet, for defenders understandably overwhelmed by the surge of defects found in Microsoft products, actively exploited zero-day vulnerabilities aren’t growing in kind.

“If there’s solace to be had, it’s in the fact that only one of these bugs is under active attack,” Childs wrote in a blog post. “If you go back to the hot 0-day summer of 2023, there were 17 Microsoft 0-days between January and October as opposed to 15 this year during the same period.”

Microsoft disclosed one actively exploited zero-day affecting Windows Shell — CVE-2026-96951 — that allows unauthorized attackers to bypass a security feature. The high-severity defect is the third Windows Shell vulnerability exploited this year, according to Satnam Narang, senior staff research engineer at Tenable. 

“There have been 26 Windows Shell vulnerabilities patched in 2026 through October, a staggering figure compared to previous years, with only 3 Windows Shell CVEs in 2025 and just one in 2024 and 2022,” he added.

The vast majority of defects Microsoft disclosed in this month’s security update affect Windows, its ubiquitous operating system , spanning 1,102 vulnerabilities combined. The update also included 134 vulnerabilities in Office, 61 in various developer tools and 36 in SharePoint Server. 

Microsoft tried to address the toll this monthly flood of vulnerabilities has on its customers by introducing “risk cohorts.” These groups of vulnerabilities don’t necessarily share a root cause or severity rating, but generally require a similar customer assessment that could guide prioritization efforts, the company said. 

“The volume isn’t the real story anymore,” Childs added. “What matters is that discovery is scaling faster than exploitation, so teams that triage by sheer CVE count instead of exploitability are burning cycles on the wrong bugs. Patch what’s proven, prioritized, and public, and treat everything else as this month’s new normal.”

The full list of vulnerabilities addressed this month is available in Microsoft’s Security Response Center.

The post Microsoft drops an actively exploited zero-day among record high of 1,413 vulnerabilities appeared first on CyberScoop.

Flock can now issue CVEs for its own products. Should we trust it?

12 October 2026 at 18:11

Flock, the controversial public safety company entangled in controversy amid recurring law enforcement abuse of its products, gained authority to assign CVE IDs to vulnerabilities in its own products and grade those defects as a CVE Numbering Authority.

The manufacturer of various surveillance systems, including automated license plate readers (ALPRs) and AI-powered cameras, said it joined the global footprint of more than 550 CNAs to assess, coordinate and prioritize response to vulnerabilities internally.

“It allows us to move faster when researchers report findings, eliminate confusion from duplicate or conflicting vulnerability entries and give our customers a single, trusted source for security information about our products,” Chris Castaldo, chief information security officer at Flock, said in a statement. 

Security experts acknowledge that many vendors are granted CNA authority for good reason. Separately, Flock’s business has drawn considerable public and legal scrutiny over privacy concerns, along with multiple reports of police abusing the technology.

Controversies stemming from such misuse have impacted Flock’s credibility and could cloud how security researchers view the company as a CNA. The development also highlights the limitations of the CVE program, including what constitutes a vulnerability. 

“The measure of Flock as a CNA is whether its records give cities, police departments, and the public enough detail and accuracy to let people track specific risks by product version, the nature of the vulnerability, and ideally how to mitigate or fix it,” Katie Moussouris, founder at CEO at Luta Security, told CyberScoop.

Flock declined to answer questions or make an executive available for an interview, and instead referred back to a blog post.

The company published its vulnerability disclosure policy in August and recently created a security advisories page where it will publish all newly discovered and confirmed vulnerabilities going forward.

Zach Edwards, a security and privacy researcher, noted that numerous activists have done technical teardowns of Flock’s products and said he expects some researchers to continue disclosing Flock vulnerabilities without coordinating with the company.

Researchers last year reported multiple defects in Flock’s license-plate reader and gunshot detection system, which the company submitted for inclusion in the National Vulnerability Database, but deemed not material because the vulnerabilities require physical access to the device. 

“These cameras sit on poles on public streets,” Moussouris said.

Because CNAs are “essentially grading their own homework,” as Edwards put it, credibility and trust have to be earned consistently by properly addressing every defect that meets a reasonable threshold.

“Vendors make sense as CNAs for their own products if they can be trusted to maintain accurate records. They know the code, they can confirm the flaw, and they can tie the record to affected versions and the fix,” Moussouris said. 

“The conflict of interest manifests when they lack the organizational and technical maturity to correctly assess the flaws and their impact,” she added. “A vendor in the CNA role writes the description and often sets the severity score, so an immature vendor may inaccurately represent an issue, either through ignorance or in a misdirected effort to downplay it.”

Flock’s vulnerability disclosure policy specifically disallows testing against live customer deployments, accessing law enforcement or investigative data, physical attacks, denial-of-service testing or social engineering. The company does not run a paid bug bounty program.

“Flock stands out as a CNA because its products track drivers’ movements, its customers are police, and its policy reserves the right to hold back publication if it decides disclosure would create a safety risk to law enforcement or the public,” Moussouris said. “The latter may lead to an abuse in their authority and control of CVEs unless they embrace a more mature customer-safety-first stance of timely, transparent, and accurate vulnerability disclosure.”

Edwards is also dubious about Flock’s position as a CNA, but adds that many vendors, including some offering similar products, are already in the program. 

There are also relatively few norms in how CNAs operate because the responsibility ultimately comes down to each participating vendor. Some companies granted CNA authority are incredibly active while others haven’t publicly disclosed vulnerabilities in their products for years.

“Only time will tell how Flock operates their CVE program and if they issue CVEs for vulnerabilities publicly disclosed,” Edwards said. “But, if their recent history is any indication, they will probably screw it up in some epic way that somehow unites people across the United States to demand CVE issuing reform.”

The post Flock can now issue CVEs for its own products. Should we trust it? appeared first on CyberScoop.

Report As You Go: Maintaining Good Documentation for SOC Analysts

Working in the SOC can be a grind. Whether triaging alerts, escalating to clients, or just trying to understand why users download malicious files, we feel the need to get through tickets as fast as possible. But in that rush, we can actually hinder our progress and slow ourselves down.

What can we do to make tickets, notes, and escalations aid the SOC in the past, present, and future? Using structure, “building upon,” and clear and concise direction, we can set ourselves and the SOC up for success.

Structure

In one of Jason Blanchard’s “Job Hunt Like a Hacker” BHIS livestreams, he emphasized using bullet points when listing job experience rather than a big wall of text, as “people will get lost and stop reading.” I took this advice to heart in the way I structure the internal notes of my tickets.

I use structured, cascading bullet points to document each step taken and each piece of evidence discovered during triage. This format makes it easy for any teammate to pick up where I left off — or for a lead to QA my work without asking me to explain it.

Building Upon

Now that we know how to structure our notes, what should we actually document? While triaging the alert, begin with steps taken. This could be “- Ran query: {the query itself or link to SIEM platform of query used}”, “- Investigated User’s recent login history”, etc. From there, gather evidence (log data, artifacts, screenshots, etc.) pertaining to the events that occurred and add them to your notes as you discover them.

Just because you add something to your notes, doesn’t mean it’s set in silicon (excuse my play on words...). If an event or evidence is not actually linked to the alert, you can remove it. It’s better to capture too much and trim later than to miss something you’ll need to reconstruct hours or days from now. This is a key part of the “Report-As-You-Go” process.

Clear and Concise Direction

We have our structure and our evidence... now what? It’s time to edit down and proofread what we have in the internal so that it only contains necessary information. Clear away any rabbit holes or evidence not pertinent to the alert in question. Your thought process should be apparent from the information you present. A final bullet point stating your verdict will enhance this clarity, such as “- Atypical behavior of user, will escalate and confirm expected.”

With the evidence well-documented and your verdict made, you are set to either update the client or close the ticket, setting everyone up for future success.

Documentation Muscle

Just like regular muscles, you need to constantly work out your reporting-as-you-go muscles. The more you exercise these muscles, the stronger they become. It’s an ever-improving process: the first couple of internals you create are not going to be great, but you will see improvement the more you work at it. Another way to work this muscle is to start a blog and write walkthroughs on different cyber rooms, CTFs, or topics you’re studying. Get started today!

Resources

How To Write Practical Lab Notes with Obsidian and Notion with Daniel Lowrie and Antisyphon Training

The Formula for Great SOC Tickets by Hayden Covington

Major rules for federal contractors handling sensitive data are nearing the finish line

7 October 2026 at 15:44

Federal government contractors that handle sensitive information could soon face a “sea change” in rules about how they protect that information and report when it has been part of a breach.

Pending federal regulations on the handling of “controlled unclassified information,” or CUI, a category of sensitive data that falls short of classified — including people’s personal information such as Social Security numbers, information that could expose vulnerabilities in critical infrastructure and more — could arrive as soon as the end of this year, but likely no later than the end of President Donald Trump’s term, attorneys who specialize in federal procurement rules said. The changes are part of a larger overhaul of federal contracting rules.

As currently written, the proposed CUI rules mandate that unauthorized access of such data, including as a result of a cyberattack, would have to be reported to the federal government within 72 hours of discovery. The rules are a companion for most federal agencies to existing  Defense Department rules that cover the same subject. The 72-hour notice also is deliberately aligned with forthcoming rules from the Cybersecurity and Infrastructure Security Agency (CISA) for critical infrastructure owners and operators to report major cyber incidents under the Cybersecurity Incident Reporting for Critical Infrastructure Act (CIRCIA).

The CUI rules require contractors to adhere to minimum electronic security standards for protecting that sensitive information. Experts said the rules could expose contractors who fail to comply with cybersecurity guidelines to penalties under the False Claims Act, a lever that the federal government has been using increasingly since 2022 to punish contractors over lackluster cyber safeguards.

It’s “going to be a sea change for a lot of companies,” said Trayce Howard, a government contracts partner at Wiley Rein. 

“If it’s finalized in the form that it’s in now, it will be a fairly significant change for federal contractors,” said Ryan Burnette, a partner at Covington focused on government contracts and technology.

Susan Cassidy, another partner at Covington who advises government contractors, said the proposed regulation is part of a journey that began as far back as an executive order in 2010, when officials realized they couldn’t have sufficient, consistent requirements for protecting CUI given that so many agencies used different terminology for it: “sensitive but unclassified,” “for official use only,” and more.

The proposed rule is intended to “make it easier for contractors to comply with one set of standards, rather than many different types of standards” for the protection of CUI and the reporting on CUI incidents such as breaches, she said.

One industry source who spoke on condition of anonymity was candid about the difficulties CUI poses.

“CUI can be painful for many industry stakeholders because it’s not always clear what constitutes CUI,” the source said. “Many contractors will say they don’t necessarily know exactly what CUI is, despite their best efforts. Information from agencies isn’t always clearly marked as CUI.”

The reporting requirements

An earlier draft of the rule gave industry groups more heartburn: It had an 8-hour standard for reporting CUI incidents, rather than 72, and it required reporting of suspected incidents as well.

Still, a number of industry groups objected to the 72-hour standard, despite it being part of a much-sought after attempt to align federal breach reporting notification standards under CIRCIA.

The Aerospace Industries Association, for instance, said in filed comments that it “reiterates concerns with these compressed timelines which will be difficult and costly for industry to comply with,” in reference to the 72-hour standard. “AIA recommends extending these timelines to 30 calendar days to accommodate improved reporting while reducing compliance costs.”

The industry source said that “72 hours is largely a policy decision, based on extensive public-private deliberation,” rather than one based on any study of what’s best.

Another point of discussion about the reporting rule as written is where contractors report incidents.

“While the 72-hour reporting window is a significant improvement over the 8-hour window in the January 2025 proposal, the June 2026 rulemaking still appears to require reporting to agency -specific points of contact … rather than to a single centralized hub,” the Chamber of Commerce wrote in its comments.

Cassidy said “it will be interesting to see how centralized reporting into CISA, which is the other place where civilian agencies go, is handled, and whether there’s coordination with DOD or whether or not we still see two separate streams going through.”

The standards

The other major aspect of the proposed rule is that contractors handling CUI would have to abide by certain cybersecurity standards set by the National Institute of Standards and Technology known as SP 800-171, which Howard and her Wiley coauthors said would be imposed “on a broader group of contractors than ever before.” Some contractors might also have to meet other cybersecurity requirements, too.

“Another thing that will affect contractors is they’re going to have to flow down these requirements to their subcontractors,” she said. “So they’re going to have to identify what CUI am I giving to my subcontractors, and do some sort of oversight to make sure that their subcontractors are appropriately handling CUI.”

Howard and other experts predict that the rules could expand who might be subjected to False Claims Act punishments.

“I do think that this creates some significant False Claims at risk for contractors,” she said. This is going to encompass a whole new universe of contractors that may not be quite ready for that… contractors that have been working for civilian agencies exclusively have not been subject to this before.”

Final steps

The next steps aren’t 100 percent clear. Howard said a final rule could arrive by the end of the year. Cassidy said either an interim rule could take effect soon, or a final rule could be issued. Burnette said a final rule might be farther away, though the Trump administration has made it clear it wants everything finalized before the end of its term.

That means contractors need to get ready, he said.

“I think contractors should really be looking at this, preparing for it in certain ways, at least by recognizing at a high level, where this is headed and the types of activities and steps they need to be doing internally,” Burnette said. “Some of the minutia and the details, those are still subject to ironing out. But generally speaking, if you look at this rule compared to the rule that we saw early last year, they are much more similar than they are different. So we are starting to see  some crystallization here of the requirements, and we’re starting to get an idea what might change and what is most likely baked at this point.”

The Office of Management and Budget did not respond to requests for comment.

The post Major rules for federal contractors handling sensitive data are nearing the finish line appeared first on CyberScoop.

Citrix discloses third actively exploited NetScaler zero-day in less than a week

5 October 2026 at 19:07

Citrix customers just got through back-to-back weekends filled with varying levels of uncertainty and worry, as yet another actively exploited zero-day vulnerability was discovered in Citrix NetScaler products.

Researchers and security experts said the vulnerability — CVE-2026-88779 — is less concerning because exploitation triggers denial of service and only impacts instances that have SAML (security assertion markup language) enabled. 

“This means it doesn’t work out of the box against every NetScaler deployment,” Jake Knott, head of threat intelligence at watchTowr, told CyberScoop. “While this is very inconvenient, it doesn’t have organizations scrambling to trigger incident response.”

Citrix was much quicker and consistent in alerting customers to the emerging threat Friday, and followed up the next day with a more detailed blog post and security advisory that contained a patch for the high-severity defect. 

“After we were alerted to this issue we immediately developed and published a mitigation while concurrently developing, testing and deploying a fix,” a company spokesperson said in a statement. “The fix for this issue is available, and we urge all customers to quickly apply it to their NetScaler instance.”

The Cybersecurity and Infrastructure Security Agency added the defect to its known exploited vulnerabilities catalog Sunday.

The vendor’s response also provided some relief for customers and researchers who spent much of the previous weekend rushing to assess widespread rumors of other defects in the assailed network edge gateways. In that case, Citrix took most of the weekend to confirm attackers were actively exploiting a pair of NetScaler zero-days, some of which researchers said remained undetected for at least three weeks.

“Citrix did a better job with their response to this vulnerability,” and took steps that enabled customers to make their own risk-based decisions with more currently available information, said Joe Toomey, vice president of underwriting security at insurance provider Coalition. 

“Although it’s difficult to celebrate given this is the third publicly-exploited NetScaler zero-day vulnerability in a two-week window, it is a step in the right direction,” he added. 

Citrix declined to say how many customers are impacted by the latest zero-day or when the first instance of exploitation occurred. Yet, Knott at watchTowr said exploitation likely began Friday. 

The newer defect doesn’t share any technical links with the pair of zero-days Citrix disclosed less than a week prior, but it can accelerate one of those vulnerabilities — CVE-2026-88771 — by intentionally crashing machines to speed up exploitation, Knott said.

While risk is currently perceived low for CVE-2026-88779, it is “incredibly simple to trigger, with a single specially crafted request being all that is needed to knock an appliance offline,” Knott added. “Exploitation is already occurring in the wild, and disrupting an authentication gateway can prevent legitimate users from accessing the services behind it.”

Toomey also described the denial-of-service vulnerability as less serious than the previous week’s actively exploited zero-days. Yet, he noted, exploitation attempts of CVE-2026-88779 “clearly contain shellcode that implies that the threat actor believes they can use this vulnerability, or chain it with another vulnerability, in order to achieve remote-code execution.”

The post Citrix discloses third actively exploited NetScaler zero-day in less than a week appeared first on CyberScoop.

Apollo discloses data breach from ongoing wave of attacks hitting financial sector

21 August 2026 at 15:14

Apollo Global Management confirmed it was among several financial institutions impacted by a string of social engineering attacks that hit the sector last month, the company said Friday. 

Attackers gained unauthorized access to some of the private equity firm’s cloud platforms between July 6 and July 10, the company said in a data breach notification filed in California. Apollo did not say when or how it became aware of the intrusion and did not respond to a request for comment.

Apollo is the first victim to formally disclose that sensitive personal data under its care was compromised by a wave of attacks that have hit large private equity firms, law firms, financial rating agencies and medical technology companies. 

The company did not name the group responsible for the attack. Yet, Google earlier this month attributed the ongoing campaign to BlackFile, a threat group affiliated with The Com, that recently split its extortion operations across four brands with shared infrastructure: Redact, Pink, Helix and Falcon. 

“Upon detecting the incident, we promptly notified law enforcement, engaged leading outside cybersecurity and forensic experts, enhanced our security protocols, and launched an investigation,” Matthew Breitfelder, global head of human capital at Apollo, wrote in the disclosure notice. 

As part of its ongoing investigation, Apollo said it determined on Aug. 12 that personal data including names, dates of birth, contact information, home addresses and Social Security numbers were compromised. The company did not say how many people were impacted, but noted it’s thus far found no evidence any data was posted online or used for identity theft or fraud.

Apollo is one of the world’s largest private equity firms, with $1.05 trillion in assets under its management at the end of June, according to a regulatory filing.

Researchers previously told CyberScoop some of Apollo’s largest competitors, including Blackstone and Bain Capital, were also targeted with malicious infrastructure, but it’s unclear if those firms were compromised.

BlackFile and its various affiliates have impacted organizations in multiple industries, including healthcare, technology, transportation, logistics, wholesale, and retail and hospitality since the beginning of this year.

The extortion group shifts from one sector to the next, impersonating IT support in voice-phishing and social-engineering attacks before threatening its alleged victims with extortion demands, which often start around $3 million and are typically negotiated down to less than $1 million.

Google researchers also previously said some of the group’s recent victims have been subject to threatening messages and other forms of escalation, including swatting incidents, a tactic adopted by several subsets of The Com.

The post Apollo discloses data breach from ongoing wave of attacks hitting financial sector appeared first on CyberScoop.

Microsoft discloses ‘the mother of all’ vulnerability loads, tripling June’s previous record

14 July 2026 at 16:05

Microsoft’s monthly Patch Tuesday security program reached an unrivaled pinnacle this month, as the vendor addressed 622 vulnerabilities across its suite of business products and systems. 

“The bug apocalypse has finally descended upon us,” Dustin Childs, head of threat awareness at Trend Micro’s Zero Day Initiative, wrote in a blog post Tuesday.

“The mother of all releases. To call this record-breaking is an understatement,” he added. “The CVE count year-to-date exceeds all other years’ totals.”

The startling increase in vulnerabilities reflects a compounding effect taking root across software as artificial intelligence plays a growing role in discovering and developing patches for defects lurking in error-riddled applications. 

Microsoft’s June Patch Tuesday update broke the previous all-time record with 206 vulnerabilities.

The company last week warned forewarned customers and defenders that a flood of defects would be uncovered as it applies its multi-model agentic scanning harness (MDASH) to discover and address vulnerabilities at greater speed and scale.

The monthly exponential rise in Microsoft vulnerabilities already puts the vendor on pace to break a full-year record, ending 2026 with the largest annual collection of defects, beating the previous record of 1,245 CVEs in 2020, Satnam Narang, senior staff research engineer at Tenable, said in an email. 

“It’s probable that we will not only exceed 2,000 CVEs in a calendar year, but potentially over 3,000 CVEs this year or more,” he added.

“The volume is striking, but it reflects how good these tools have become at finding bugs, not how many of those bugs actually pose a risk to organizations,” Narang said.

Microsoft disclosed two actively exploited zero-day vulnerabilities — CVE-2026-56155 and CVE-2026-56164, privilege escalation defects in Active Directory Federation Services and Microsoft SharePoint Server, respectively. 

The monthly batch of patches included 416 defects in Windows, 82 in Office and 46 in Microsoft Edge. More than 1 in 10 vulnerabilities the vendor disclosed — 63 total — were rated as critical.

“The products covered this month are also astonishing,” Childs said. “Just about everything you’ve ever heard of is getting patched.”

The full list of vulnerabilities addressed this month is available in Microsoft’s Security Response Center.

SAP also addressed a fresh assortment of vulnerabilities Tuesday, including critical defects CVE-2026-44747 in SAP NetWeaver Application Server and CVE-2026-27690 in SAP Approuter.

The post Microsoft discloses ‘the mother of all’ vulnerability loads, tripling June’s previous record appeared first on CyberScoop.

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